diff options
Diffstat (limited to 'src/lpc176x/usbserial.c')
| -rw-r--r-- | src/lpc176x/usbserial.c | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/src/lpc176x/usbserial.c b/src/lpc176x/usbserial.c index b6779ed1..90e72cc4 100644 --- a/src/lpc176x/usbserial.c +++ b/src/lpc176x/usbserial.c @@ -260,6 +260,41 @@ usb_request_bootloader(void) NVIC_SystemReset(); } + +/**************************************************************** + * Setup and interrupts + ****************************************************************/ + +void __visible +USB_IRQHandler(void) +{ + uint32_t udis = LPC_USB->USBDevIntSt; + if (udis & DEV_STAT) { + LPC_USB->USBDevIntClr = DEV_STAT; + // XXX - should handle reset and other states + } + if (udis & EP_SLOW) { + uint32_t ueis = LPC_USB->USBEpIntSt; + if (ueis & (1<<EP0OUT)) { + sie_select_and_clear(EP0OUT); + usb_notify_ep0(); + } + if (ueis & (1<<EP0IN)) { + sie_select_and_clear(EP0IN); + usb_notify_ep0(); + } + if (ueis & (1<<EP2OUT)) { + sie_select_and_clear(EP2OUT); + usb_notify_bulk_out(); + } + if (ueis & (1<<EP5IN)) { + sie_select_and_clear(EP5IN); + usb_notify_bulk_in(); + } + LPC_USB->USBDevIntClr = EP_SLOW; + } +} + DECL_CONSTANT_STR("RESERVE_PINS_USB", "P0.30,P0.29,P2.9"); void @@ -295,33 +330,3 @@ usbserial_shutdown(void) usb_irq_enable(); } DECL_SHUTDOWN(usbserial_shutdown); - -void __visible -USB_IRQHandler(void) -{ - uint32_t udis = LPC_USB->USBDevIntSt; - if (udis & DEV_STAT) { - LPC_USB->USBDevIntClr = DEV_STAT; - // XXX - should handle reset and other states - } - if (udis & EP_SLOW) { - uint32_t ueis = LPC_USB->USBEpIntSt; - if (ueis & (1<<EP0OUT)) { - sie_select_and_clear(EP0OUT); - usb_notify_ep0(); - } - if (ueis & (1<<EP0IN)) { - sie_select_and_clear(EP0IN); - usb_notify_ep0(); - } - if (ueis & (1<<EP2OUT)) { - sie_select_and_clear(EP2OUT); - usb_notify_bulk_out(); - } - if (ueis & (1<<EP5IN)) { - sie_select_and_clear(EP5IN); - usb_notify_bulk_in(); - } - LPC_USB->USBDevIntClr = EP_SLOW; - } -} |